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Pyridine, hydrofluoride (1:1) → HCID 57075111, Verbindung

HRID 1655800
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1655800
[CH2:1]([CH:3]1[CH:29]=[C:28]([CH3:30])[CH2:27][CH:26]([CH3:31])[CH2:25][CH:24]([O:32][CH3:33])[CH:23]2[O:34][C:19]([OH:38])([CH:20]([CH3:37])[CH2:21][CH:22]2[O:35][CH3:36])[C:18](=[O:39])[C:17](=[O:40])[N:16]2[CH:11]([CH2:12][CH2:13][CH2:14][CH2:15]2)[C:10](=[O:41])[O:9][CH:8]([C:42]([CH3:70])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([O:50][CH2:51][CH:52]=[CH:53][C:54]3[CH:59]=[CH:58][C:57]([O:60][Si](C(C)(C)C)(C)C)=[CH:56][CH:55]=3)[CH:46]([O:68][CH3:69])[CH2:45]2)[CH:7]([CH3:71])[CH:6]([OH:72])[CH2:5][C:4]1=[O:73])[CH3:2].N1C=CC=CC=1.F>O1CCCC1>[CH2:1]([CH:3]1[CH:29]=[C:28]([CH3:30])[CH2:27][CH:26]([CH3:31])[CH2:25][CH:24]([O:32][CH3:33])[CH:23]2[O:34][C:19]([OH:38])([CH:20]([CH3:37])[CH2:21][CH:22]2[O:35][CH3:36])[C:18](=[O:39])[C:17](=[O:40])[N:16]2[CH:11]([CH2:12][CH2:13][CH2:14][CH2:15]2)[C:10](=[O:41])[O:9][CH:8]([C:42]([CH3:70])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([O:50][CH2:51][CH:52]=[CH:53][C:54]3[CH:59]=[CH:58][C:57]([OH:60])=[CH:56][CH:55]=3)[CH:46]([O:68][CH3:69])[CH2:45]2)[CH:7]([CH3:71])[CH:6]([OH:72])[CH2:5][C:4]1=[O:73])[CH3:2]
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Komponenten

5

Edukt 3

HCID 64774Pyridine, hydrofluoride (1:1)HCID 57054354HCID 57054354, VerbindungHCID 178435178HCID 178435178, Verbindung

Produkt 1

HCID 57075111HCID 57075111, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel2×

Versuchsvorschrift

To a solution of 17-ethyl-1,14-dihydroxy-12-[2'-(4"-(4'"-t-butyldimethylsiloxycinnamyloxy)-3"-methoxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9 ]octacos-18-ene-2,3,10,16-tetraone (190 mg in 2 ml tetrahydrofuran contained in a polypropylene vial) was added 500 μof a solution of hydrogen fluoride-pyridine complex (40% in (2:1) tetrahydrofuran:pyridine) and the mixture stirred at room temperature. After 2 hours, the reaction was quenched by the careful addition of saturated sodium bicarbonate and extracted with ethyl acetate. The combined organics were dried over magnesium sulfate, concentrated in vacuo and purified by flash chromatography on silica gel (ethyl acetate:hexane (2:1) to give the title compound (50 mg).

Aufarbeitung

  1. customthe reaction was quenched by the careful addition of saturated sodium bicarbonate
  2. extractionextracted with ethyl acetate
  3. dry with materialThe combined organics were dried over magnesium sulfate
  4. concentrationconcentrated in vacuo
  5. custompurified by flash chromatography on silica gel (ethyl acetate:hexane (2:1)

Quellen und Nachweise

ORD-Eintrag
ord-38abae28ac014d50a579877cde89653b
Quelldatensatz
uspto-grants-1993_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05250678

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